linux-kernel - Re: [PATCH 1/6] drm: Convert aux

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Message-ID: <202508191844.VZB7euYb-lkp@intel.com>
Date: Tue, 19 Aug 2025 18:35:21 +0800
From: kernel test robot <lkp@...el.com>
To: Sidhartha Kumar <sidhartha.kumar@...cle.com>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
	tzimmermann@...e.de, airlied@...il.com, simona@...ll.ch,
	willy@...radead.org, sidhartha.kumar@...cle.com
Subject: Re: [PATCH 1/6] drm: Convert aux_idr to XArray

Hi Sidhartha,

kernel test robot noticed the following build errors:

[auto build test ERROR on v6.16]
[also build test ERROR on next-20250819]
[cannot apply to drm-exynos/exynos-drm-next linus/master v6.17-rc2 v6.17-rc1]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Sidhartha-Kumar/drm-Convert-aux_idr-to-XArray/20250819-031755
base:   v6.16
patch link:    https://lore.kernel.org/r/20250818190046.157962-2-sidhartha.kumar%40oracle.com
patch subject: [PATCH 1/6] drm: Convert aux_idr to XArray
config: x86_64-buildonly-randconfig-002-20250819 (https://download.01.org/0day-ci/archive/20250819/202508191844.VZB7euYb-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250819/202508191844.VZB7euYb-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508191844.VZB7euYb-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/display/drm_dp_aux_dev.c:85:5: error: passing 'struct xa_limit' to parameter of incompatible type 'void *'
      85 |                                 XA_LIMIT(0, DRM_AUX_MINORS - 1), aux_dev, GFP_KERNEL);
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/xarray.h:248:30: note: expanded from macro 'XA_LIMIT'
     248 | #define XA_LIMIT(_min, _max) (struct xa_limit) { .min = _min, .max = _max }
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/xarray.h:872:9: note: passing argument to parameter 'entry' here
     872 |                 void *entry, struct xa_limit limit, gfp_t gfp)
         |                       ^
   1 error generated.


vim +85 drivers/gpu/drm/display/drm_dp_aux_dev.c

    71	
    72	static struct drm_dp_aux_dev *alloc_drm_dp_aux_dev(struct drm_dp_aux *aux)
    73	{
    74		struct drm_dp_aux_dev *aux_dev;
    75		int err;
    76	
    77		aux_dev = kzalloc(sizeof(*aux_dev), GFP_KERNEL);
    78		if (!aux_dev)
    79			return ERR_PTR(-ENOMEM);
    80		aux_dev->aux = aux;
    81		atomic_set(&aux_dev->usecount, 1);
    82		kref_init(&aux_dev->refcount);
    83	
    84		err = xa_alloc(&aux_xa, &aux_dev->index,
  > 85					XA_LIMIT(0, DRM_AUX_MINORS - 1), aux_dev, GFP_KERNEL);
    86		if (err < 0) {
    87			kfree(aux_dev);
    88			return ERR_PTR(err);
    89		}
    90	
    91		return aux_dev;
    92	}
    93	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki